Patents by Inventor Alexis John Toft

Alexis John Toft has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10201501
    Abstract: There is provided use of a mixed metal compound in the manufacture of medicament for neutralizing or buffering stomach acid, wherein the mixed metal compound contains at least one trivalent metal selected from iron (III) and aluminum and at least one divalent metal selected from of magnesium, iron, zinc, calcium, lanthanum and cerium, wherein (A) the mixed metal compound is of formula (I): MII1-aMIIIaObAn?c.zH2O (I) where MII is the at least one bivalent metal; MIII is the at least one trivalent metal; An? at least one n-valent anion; 2+a=2b+?cn and ?cn<0.9a, and z is 2 or less, and/or (B) the mixed metal compound is provided in the form of a granular material comprising (i) at least 50% by weight, based on the weight of the granular material, of the mixed metal compound (ii) from 3 to 12% by weight, based on the weight of the granular material, of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: February 12, 2019
    Assignee: OPKO IRELAND GLOBAL HOLDINGS, LTD.
    Inventors: Maurice Sydney Newton, James David Morrison, Ruth Diane Pennel, Nigel Peter Rhodes, Alexis John Toft
  • Patent number: 10155040
    Abstract: The present invention relates to mixed metal compounds having pharmaceutical activity, especially as phosphate binders. It also extends to methods of manufacture of those compounds, as well as to pharmaceutical compositions containing such compounds. It further relates to their pharmaceutical use. In particular, the present invention relates to use of compounds of Formula (I): MII1-aMIIIa wherein M? is at least one bivalent metal (i.e. with two positive charges); M1 is at least one trivalent metal (i.e. with three positive charges); and 1>a>0.4.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: December 18, 2018
    Assignee: OPKO IRELAND GLOBAL HOLDINGS, LTD.
    Inventors: Maurice Sydney Newton, Alexis John Toft, Nigel Peter Rhodes
  • Patent number: 9907816
    Abstract: There is provided a granular material comprising (i) at least 50% by weight based on the weight of the granular material of solid water-insoluble mixed metal compound capable of binding phosphate of formula (I): MII1-x.MIIIx(OH)2An?y.zH2O (I) where MII is at least one of magnesium, calcium, lanthanum and cerium; MII is at least iron(III); An is at least one n-valent anion; x=?ny, 0<x?0.67, 0<y?1, and 0?z<10; (ii) from 3 to 12% by weight based on the weight of the granular material of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 6, 2018
    Assignee: OPKO IRELAND GLOBAL HOLDINGS, LTD.
    Inventors: Ruth Diane Pennell, Maurice Sydney Newton, James David Morrison, Alexis John Toft, Nigel Peter Rhodes
  • Publication number: 20170106091
    Abstract: The present invention provides a composition comprising (i) a mixed metal compound containing at least one trivalent metal selected from iron (III) and aluminium and at least one divalent metal selected from of magnesium, iron, zinc, calcium, lanthanum and cerium, (ii) xanthan gum (iii) at least one of (a) polyvinyl pyrrolidone (b) locust bean gum (c) methyl cellulose wherein the composition has been irradiated with ionising radiation in an amount of at least 4kGy.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventors: Richard Jonathan Applewhite, Maurice Sydney Newton, Alexis John Toft
  • Patent number: 9566302
    Abstract: The present invention provides a composition comprising (i) a mixed metal compound containing at least one trivalent metal selected from iron (lll) and aluminum and at least one divalent metal selected from of magnesium, iron, zinc, calcium, lanthanum and cerium, (ii) xanthan gum (iii) at least one of (a) polyvinyl pyrrolidone (b) locust bean gum (c) methyl cellulose wherein the composition has been irradiated with ionizing radiation in an amount of at least 4 kGy.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: February 14, 2017
    Assignee: OPKO IRELAND GLOBAL HOLDINGS, LTD.
    Inventors: Richard Jonathan Applewhite, Alexis John Toft
  • Patent number: 9168270
    Abstract: There is provided a granular material comprising (i) at least 50% by weight based on the weight of the granular material of solid water-insoluble mixed metal compound capable of binding phosphate of formula (I): MII1-xMIIIx(OH)2An-y.ZH2O (I) where MII is at least one of magnesium, calcium, lanthanum and cerium; MIII is at least iron(III); An- is at least one n-valent anion; x=?ny; 0<x?0.67, 0<y?1, and 0?z<10; (ii) from 3 to 12% by weight based on the weight of the granular material of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 27, 2015
    Assignee: OPKO IRELAND GLOBAL HOLDINGS, LTD.
    Inventors: Ruth Diane Pennel, Maurice Sydney Newton, James David Morrison, Alexis John Toft, Nigel Peter Rhodes
  • Publication number: 20150132407
    Abstract: There is provided a granular material comprising (i) at least 50% by weight based on the weight of the granular material of solid water-insoluble mixed metal compound capable of binding phosphate of formula (I): MII1-x.MIIIx(OH)2An?y.zH2O (I) where MII is at least one of magnesium, calcium, lanthanum and cerium; MII is at least iron(III); A is at least one n-valent anion; x=?ny, 0<x?0.67, 0<y?1, and 0?z<10; (ii) from 3 to 12% by weight based on the weight of the granular material of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Inventors: Ruth Diane Pennel, Maurice Sydney Newton, James David Morrison, Alexis John Toft, Nigel Peter Rhodes
  • Publication number: 20130323325
    Abstract: The present invention provides a composition comprising (i) a mixed metal compound containing at least one trivalent metal selected from iron (lll) and aluminium and at least one divalent metal selected from of magnesium, iron, zinc, calcium, lanthanum and cerium, (ii) xanthan gum (iii) at least one of (a) polyvinyl pyrrolidone (b) locust bean gum (c) methyl cellulose wherein the composition has been irradiated with ionising radiation in an amount of at least 4 kGy.
    Type: Application
    Filed: February 3, 2011
    Publication date: December 5, 2013
    Applicant: CYTOCHROMA DEVELOPMENT INC.
    Inventors: Richard Jonathan Applewhite, Maurice Sydney Newton, Alexis John Toft
  • Publication number: 20120093943
    Abstract: A substance for use as a medicament, comprises a solid mixed metal compound of formula (I): MII1-aMIIIaObAn?c.zH2O (I) where MII is at least one bivalent metal: MIII bis at least one trivalent metal; An? is at least one n-valent anion; 2+a=2b+?cn; and ?cn<0.9a. The substance may be made by heating at a temperature of from 200° C. to 600° C., preferably from 250° C. to 500° C. of a substance comprising a compound of formula (II): MII1-xMIIIx(OH)2An?y.mH2O (II) where MII is at least one bivalent metal; MIII is at least one trivalent metal; An? is at least one n-valent anion; x=?yn 0<x?0.5, 0<y?1 and 0<m?10.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 19, 2012
    Inventors: Maurice Sydney Newton, Nigel Peter Rhodes, Alexis John Toft
  • Publication number: 20110064815
    Abstract: There is provided a silica for use to inhibit a protease. In particular there is provided a silica for treatment or prevention of a disease or condition associated with adverse protease activity or adverse proteolytic degradation within the gastrointestinal tract.
    Type: Application
    Filed: April 23, 2009
    Publication date: March 17, 2011
    Inventors: Alexis John Toft, Peter William Dettmar, Johnathan Craig Richardson, Vicki Strugala
  • Publication number: 20100215770
    Abstract: The present invention relates to mixed metal compounds having pharmaceutical activity, especially as phosphate binders. It also extends to methods of manufacture of those compounds, as well as to pharmaceutical compositions containing such compounds. It further relates to their pharmaceutical use. In particular, the present invention relates to use of compounds of Formula (I): MII1-aMIIIa wherein M is at least one bivalent metal (i.e. with two positive charges); M1 is at least one trivalent metal (i.e. with three positive charges); and 1>a>0.4.
    Type: Application
    Filed: October 15, 2008
    Publication date: August 26, 2010
    Inventors: Maurice Sydney Newton, Alexis John Toft, Nigel Peter Rhodes
  • Publication number: 20100203152
    Abstract: There is provided use of a mixed metal compound in the manufacture of medicament for neutralising or buffering stomach acid, wherein the mixed metal compound contains at least one trivalent metal selected from iron (III) and aluminium and at least one divalent metal selected from of magnesium, iron, zinc, calcium, lanthanum and cerium, wherein (A) the mixed metal compound is of formula (I): MII1-aMIIIaObAn-c.zH2O (I) where MII is the at least one bivalent metal; MIII is the at least one trivalent metal; An- at least one n-valent anion; 2+a=2b+?cn and ?cn<0.9a, and z is 2 or less, and/or (B) the mixed metal compound is provided in the form of a granular material comprising (i) at least 50% by weight, based on the weight of the granular material, of the mixed metal compound (ii) from 3 to 12% by weight, based on the weight of the granular material, of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Application
    Filed: July 24, 2008
    Publication date: August 12, 2010
    Applicant: Ineos Healthcare Kimited
    Inventors: Maurice Sydney Newton, James David Morrison, Ruth Diane Pennell, Nigel Peter Phodes, Alexis John Toft
  • Publication number: 20090317459
    Abstract: There is provided a granular material comprising (i) at least 50% by weight based on the weight of the granular material of solid water-insoluble mixed metal compound capable of binding phosphate of formula (I): MII1?xMIIIx(OH)2?n?y.ZH2O (I) where MII is at least one of magnesium, calcium, lanthanum and cerium; MIII is at least iron(III); ?n? is at least one n-valent anion; x=?ny; 0<x?0.67, 0<y?1, and 0?z<10; (ii) from 3 to 12% by weight based on the weight of the granular material of non-chemically bound water, and (iii) no greater than 47% by weight based on the weight of the granular material of excipient.
    Type: Application
    Filed: January 30, 2007
    Publication date: December 24, 2009
    Inventors: Ruth Diane Pennel, Manrice Sydney Newton, James David Morrison, Alexis John Toft, Nigel Peter Rhodes
  • Publication number: 20080206358
    Abstract: A substance for use as a medicament, comprises a solid mixed metal compound of formula (I): MII1?aMIIIaObAn?c.zH2O (I) where MII is at least one bivalent metal: MIII bis at least one trivalent metal; An? is at least one n-valent anion; 2+a=2b+?cn; and ?cn<0.9a. The substance may be made by heating at a temperature of from 200° C. to 600° C. preferably from 250° C. to 500° C. of a substance comprising a compound of formula (II): MII1?xMIIIx(OH)2An?y.mH2O (II) where MII is at least one bivalent metal; MIII is at least one trivalent metal; An? is at least one n-valent anion; x=?yn 0<x?0.5, 0<y?1 and 0<m?10.
    Type: Application
    Filed: February 6, 2006
    Publication date: August 28, 2008
    Applicant: Ineos Healthcare Limited
    Inventors: Maurice Sydney Newton, Nigel Peter Rhodes, Alexi John Toft